Agreed.
"...and keep them locked away."
With all due respect, forget "locking them away". Send them on to the next world, for they've soiled this one for far too long.
In my own life there have been two brushes with this sort of thing with my kids. What else happened that I never found out about?
My son's Mormon friend was abducted at a supermarket less than a mile from my home. Luckily he broke away from the guy but the police picked him up and found wires strung in his shoelaces. That's what he used to strangle his victims with.
In the files of the government office where I worked there was a picture of the dead body of a 12-year-old boy who was murdered by this same pervert and his body dumped on government property. I will never be able to get that picture out of my mind.
A local psychiatrist, who is a nutcase himself, shipped him off to the state hospital where he was kept for a time and released.
About a year later I picked up a copy of the Des Moines Register and saw he had raped and murdered a little girl from St. Joseph, MO.
Finally the guy killed himself in a St. Louis jail.
My son's friend suffered trauma from that experience for a long time, needed counselling, and lived in dread that they would have to go to Missouri and testify.
If the man would have been kept locked away that little girl would be alive today.